The rainbow forms an arc in the sky.
彩虹在天空中呈一个弧形。
；反三角函数
属电弧焊；属弧焊接The rainbow forms an arc in the sky.
彩虹在天空中呈一个弧形。
The rainbow described an arc in the dark sky.
彩虹在昏暗天空划出了一道圆弧。
This paper introduces the arc added glow discharge ion titanizing technique.
介绍了一种新表面合化技术———加弧辉光离子渗钛技术。
The arc bar counter dazzles dexterousness and uniqueness.
向外弧出小吧台，又炫亮了一份灵巧与别致。
Sharp corners should be radiused to prevent arc over.
这是所有剪裁下
子。
The sun appears to move in an arc across the sky.
太阳看起在天空中以弧形运行。
A radius dimension line uses one arrowheaded, at the arc end.
半径标示线由箭头线和圆弧
成。
It features a change with flame revesal,arc shape and existence of subrefining zone.
控制好泡界线即可保证玻璃球内在质量。
When the moon is new it looks like an arc of light in the sky.
新月看起像天空中一盏弧形灯。
A solar phenomenon known as a sundog arcs over the tundra in Churchill, Manitoba, Canada.
/ 太阳“假日”天文现象半悬于加拿大Manitoba丘吉尔苔原天际。
Has current preplacement, preview and arc starting current, arc force current regulation function, it makes welding operation easier.
具有电流预置预显和引弧电流、推力电流调节功能，使焊接操作更容易。
A control system based on single chip microprocessor is designed for submerged arc welder with magnetrol power source.
针对磁放大器式电源埋弧自动焊机设计了单机控制系统。
The tiny but intriguing yellowish arc visible near the blue nebulae marks young variable star R Coronae Australis.
在蓝色星云附近，微小但迷人微黄色弧状可见物标出了年轻可见恒星南冕座R星位置。
The composites with interpenetrating networks have good structure homogeneous and performance; also their mechanics, calorifics and tribology arc excellent.
网络互穿结构复合材料织结构及性能均匀性较好，具有优良力学、热学和摩擦学性能等。
Kezlag rock formation whose mother rocks are greywacke is basinal deposit, Karakez rock formation's protolith is island arc volcanics.
克孜拉格岩原岩为杂砂岩，属盆地沉积；卡拉格兹岩原岩为岛弧火山岩。
The carbothermic method of preparation for titanium diboride with titanium oxide and boron oxide in an arc furnace is studied.
研究了电弧炉碳热还原氧化钛和氧化硼制取二硼化钛方法，制备出相对纯度大于95％二硼化钛。
Utilized this method to segmentalize the image of oil derrick arc welding robot welding line gets up the good effect.
将该方法运用于石油井架弧焊机器人焊缝图象识别中起到很好效果。
The effect of process parameters on the electric insulance of micro arc oxidated ceramic coat on aluminium plate is studied.
研究了工艺参数对铝微弧氧化陶瓷层电绝缘性能影响规律。
It has properties of hardening after malleablization,arc welding and impact resistance.It can grind but can not machining demagnitized steel-bonded carbide.
具有加工硬化、电弧烛接和耐冲击特性，可磨削但不可机械无加工磁性钢结硬质合。
The procedure and characteristic of the arc discharge,feature of ignitron,firing way,structure features and its application are described in the paper.
汞弧光放电是一种低气压气体放电现象,放电电流密度大。
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